Need to cover a large area? Worried about rusting? This material is an excellent choice for moderate magnetic shielding (permeability ~1000) when cost is the major consideration. Large 24 x 48 x 0.0235 inch format, weighs less than 8 pounds per sheet, and delivers up to 80% magnetic field reduction when size and position are optimized. Magnetic Permeability of ~800. Great for covering a breaker panel, or sliding behind a solar panel inverter or smart meter. Attractive lightly brushed finish is very corrosion resistant, even at the edges. Ships with PVC film on one side to help protect against scratching during fabrication and in-stallation. Can be cut or bent with sheet metal tools, and magnets will stick to it.